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JEE Main - Electromagnetic Waves Notes (Free PDF Download)

Last updated date: 21st Apr 2024
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Score High in JEE Main 2024: Electromagnetic Waves Notes with Important Topics

Vedantu is providing JEE Main Electromagnetic Waves Notes with Important Topics to score high in JEE Main 2024. Expert Vedantu master Teachers prepare these JEE Main Notes to empower your journey toward success. You can easily download the FREE PDF of these Notes from Vedantu’s website. The main features of JEE Main notes are simplified concepts and compact notes on important topics and theories. 


JEE Main Revision Notes


Text, Images, Videos and PDF


JEE Main

Chapter Name:

Electromagnetic Waves

Academic Session:



English Medium



Available Material:

Chapter-wise Notes with PDF

Electromagnetic Waves Notes PDF should be essential material for students since this chapter explains how changing electric fields generate magnetic fields and vice versa, propagating as self-sustaining electromagnetic waves. You will get an idea of the importance of Electromagnetic Waves in JEE Main by looking at the table below. 

Year Wise Weightage of Questions: JEE Main Electromagnetic Waves

Sl. No.


Average No. Of Questions Asked

Marks per Question

Total Marks





















Take advantage of the opportunity to boost your preparation with our Electromagnetic Waves Notes. These notes cover the entire JEE Main Physics syllabus; you can download them for FREE.

Competitive Exams after 12th Science

Important Topics From Electromagnetic Waves JEE Main 2024

Below are some important topics students must consider while studying the Electromagnetic Waves chapter. These topics are picked from the previous year’s JEE Main exams. Hence, before downloading the Revision notes, you can go through the list of important topics in this chapter:

  • Electromagnetic Spectrum

  • Properties of Electromagnetic Waves

  • Electromagnetic Wave Equations

  • Electromagnetic Wave Propagation

  • Electromagnetic Wave Interference and Diffraction

  • Polarization of Light

  • Huygens' Principle

  • Polarization of Electromagnetic Waves

  • Polarization by Double Refraction

  • Electromagnetic Wave Applications

JEE 2024 Physics Notes: Get Chapter-wise Links Here

Access organized JEE 2024 Physics Notes with convenient chapter-wise links. Dive into essential topics, grasp key concepts, and prepare effectively for your exams. Get the edge you need with these focused notes.

Learn With Electromagnetic Waves Notes and Score High in JEE Main 2024

Electromagnetic Waves: Sparking the Magic of the Universe

The electrifying realm of Electromagnetic Waves – where the invisible dance of energy and fields shapes the very fabric of our universe! From the glow of the sun to the convenience of wireless communication, these waves weave a tapestry of wonders around us. Let's embark on an interactive journey to uncover the secrets of Electromagnetic Waves!

Waving Hello to the Basics:

Imagine tossing a pebble into a calm pond, watching ripples spread out. Electromagnetic waves are like these ripples, but they travel through the 'pond' of electric and magnetic fields. You'll soon find out that these waves need no medium to travel through – they can navigate through space and even vacuum!

Wave Parade: From Radio to X-Rays:

Meet the charismatic members of the electromagnetic wave family:

  • Radio Waves: These laid-back waves power your favorite tunes and enable radio communication. Tune in, and you're in for a groove!

  • Microwaves: Hungry? Microwaves have got your back. They heat up your leftovers and keep those popcorn kernels poppin'!

  • Infrared Waves: Ever wondered why your TV remote needs a clear line of sight? Infrared waves are the silent messengers that beam commands.

  • Visible Light: The rainbow spectrum is all thanks to these waves. They allow us to witness the vibrant world around us.

  • Ultraviolet Waves: While they give you a summer tan, they also serve as cosmic detectives, unveiling mysteries of distant stars.

  • X-Rays and Gamma Rays: These high-energy waves are like cosmic X-ray machines, peering into the depths of matter and space.

Wave-Powered Communication and Beyond:

Hold on tight as we leap into the world of communication! Cell phones, Wi-Fi, and even satellite TV – they all owe their magic to electromagnetic waves. Imagine sending emojis through space – that's the power of these waves!

Let's Play with Electromagnetic Waves:

Ready for some hands-on action? Use a radio receiver to tune into your favorite station. Or grab a pair of polarized sunglasses and see how they block certain orientations of light waves – a fun experiment with visible light polarization!

Cosmic Serenade:

But wait, there's more! Electromagnetic waves are the messengers from the cosmos. Telescopes capture their whispers, revealing distant galaxies, sparkling stars, and the breathtaking beauty of space.

Rocket into Tomorrow:

As you soar through this interactive exploration, remember that the knowledge you're gaining about electromagnetic waves paves the way for countless advancements in technology, communication, and our understanding of the universe. It's like holding a key to a universe of possibilities!

Unveil the captivating world of Electromagnetic Waves – a journey that's both enlightening and electrifying. Get ready to ride the waves of discovery and explore the endless horizons they reveal!

Power of Equations: How Formulas Amplify Revision Note Learning

Equations aren't just symbols; They're your key to solving problems in Physics. By grasping formulas, you'll tackle complex concepts effortlessly and boost your confidence. Dive into the world of equations along with JEE Main Physics Revision notes and amplify your study sessions. Explore our Physics formula pages to start your preparation journey of JEE Main today!

Important Formulas of Electromagnetic Waves

1. Speed of Electromagnetic Waves (v): \[ v = \dfrac{1}{\sqrt{\mu \varepsilon}} \]

Where μ is the permeability of free space and ε is the permittivity of free space.

2. Relation between Speed, Wavelength, and Frequency: \[ v = f \lambda \]

Where f  is the frequency and λ is the wavelength.

3. Wave Number (k): \[ k = \dfrac{2\pi}{\lambda} \]

4. Energy Density (u): \[ u = \dfrac{1}{2} \varepsilon E^2 \]

5. Intensity (I): \[ I = \dfrac{1}{2} c \varepsilon E^2 \]

Where c is the speed of light.

6. Poynting Vector (S): \[ S = c \varepsilon E^2 \hat{n} \]

Where \hat{n} is the unit vector in the direction of propagation.

7. Relation between Electric Field and Magnetic Field: \[ E = cB \]

Where E is the electric field strength and B is the magnetic field strength.

8. Electromagnetic Waves Equation: \[ E = E_0 \sin(kx - \omega t) \]

Other Important Links for JEE Main 2024 Electromagnetic Waves 

Discover the links of extra resources beyond JEE Main 2024 Electromagnetic Waves notes. Check out other important links that open doors to learning, practice papers, mock tests, and insights. Boost your readiness, conquer challenges, and embrace success by using these resources made just for JEE Main 2024.

Excel in Your Exams with Vedantu’s JEE Main Notes

In the journey to excel in your exams, Vedantu’s JEE Main Notes stand as your steadfast companions. These notes simplify complex topics, reinforce your understanding, and prepare you comprehensively. With Vedantu’s guidance, you’ll navigate exams with confidence and achieve success. EmbraceThe power of JEE Main Notes – download them today to elevate your preparation and reach new heights of accomplishment in your exams. Your path to excellence starts here, with Vedantu’s JEE Main Notes. Get your FREE notes now and seize success!

FAQs on JEE Main - Electromagnetic Waves Notes (Free PDF Download)

1. What are the most important topics included in Electromagnetic Waves Notes for JEE Main 2024?

The following crucial subjects are covered in the Electromagnetic Waves Notes for JEE Main 2024:

  • Electromagnetic Spectrum

  • Electromagnetic Wave Propagation

  • Properties of Electromagnetic Waves

  • Maxwell's Equations

  • Wave Equations

  • Polarization

  • Interference and Diffraction

  • Huygens' Principle

  • Production and Detection of Electromagnetic Waves

  • Waveguides and Transmission LinesPoynting Vector and Energy Transport

  • Reflection and Transmission of Electromagnetic Waves

  • Applications

2. What is the weightage of Electromagnetic Waves Notes for JEE Main 2024?

The weightage of the Electromagnetic Waves chapter in JEE Main 2024 is around 7-8%. This means that there are typically 1-2 questions asked from this chapter.

3. Which is the easiest topic of JEE Main 2024 Electromagnetic Waves Notes?

The topic of 'Electromagnetic Waves' notes in JEE Main can vary in difficulty for different individuals. Generally, introductory concepts like wave properties, wave equations, and basic wave behavior might be considered relatively easier. However, personal strengths and familiarity with the topic can greatly influence one's perception of difficulty.

4. What are the Electromagnetic Waves in the context of JEE Main 2024?

In the context of JEE Main, electromagnetic waves refer to the propagation of oscillating electric and magnetic fields through space without the need for a medium. These waves include radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Understanding their properties and characteristics is important in the study of physics and electromagnetic theory.

5. How can I apply the Electromagnetic Waves to solve JEE Main problems?

To excel in JEE Main problems related to Electromagnetic Waves, first grasp key concepts like wave properties, polarization, and propagation. Practice diverse problems to enhance problem-solving skills. Utilize formulas for wavelength, frequency, and speed. Familiarity with wave behavior and wave equations will aid in confidently tackling JEE Main challenges.

6. Are there any common mistakes students make in Electromagnetic Waves problems?

Common mistakes students make in Electromagnetic Waves problems include confusing the direction of electric and magnetic fields, misapplying the right-hand rule, neglecting units, and failing to account for wave propagation properties. Misunderstanding wave polarization, phase velocity, and boundary conditions can also lead to errors in analysis and calculations.

7. Are JEE Main 2024 Electromagnetic Waves  Notes recommended for last-minute revision?

Yes, JEE Main 2024 Electromagnetic Waves Notes are highly recommended for last-minute revision. These notes condense essential concepts, formulas, and key points, making them ideal for quick recaps before the exam. They help reinforce your memory, summarize crucial topics, and provide a swift overview of the Electromagnetic Waves chapter, ensuring you're well-prepared for the exam.

8. What are the expected difficulty level of JEE Main Electromagnetic Waves questions?

The expected difficulty level of JEE Main questions on Electromagnetic Waves varies from moderate to challenging. Students can anticipate questions covering fundamental concepts like wave propagation, polarization, reflection, and transmission. While some questions might involve straightforward applications of theory, others could require deeper understanding and problem-solving skills to solve.